T2125 Self-Employed Guide: Sole Proprietor Taxes in Canada for 2026

A T2125 self-employed return is how a Canadian sole proprietor reports business income: you fill in Form T2125, Statement of Business or Professional Activities, and file it with your personal T1 return. There is no separate business return and no separate business tax; the profit is taxed with your other income and, on top of that, you pay both halves of the Canada Pension Plan (CPP). This guide covers the dates, the form, the expenses you can claim and the instalments that catch new freelancers, consultants and contractors, including those who also file in the U.S. or India.

How does T2125 self-employed reporting work?

Business income is reported on lines 13500 (business), 13700 (professional), 13900 (commission), 14100 (farming) or 14300 (fishing) of the T1, using the figures from the T2125. The form is organized in parts:

Your net income from Part 5 flows to the T1, where it is taxed at your marginal rates. You do not pay yourself a salary; the CRA says not to deduct drawings or salaries paid to yourself.

What are the self-employed filing and payment dates?

June 15 only delays filing. Interest runs on any unpaid balance from May 1. Instalments fall on March 15, June 15, September 15 and December 15 each year. If a date falls on a weekend or CRA-recognized holiday, the next business day applies. Our CRA deadline calendar lists all of them, and the tax year and filing deadlines guide covers late-filing penalties for individuals.

How much CPP do you pay as a sole proprietor?

An employee and employer each pay 5.95%; a self-employed person pays both, so 11.9%. For 2026 the maximum is $8,460.90 on net self-employment earnings up to $74,600 after the $3,500 basic exemption. The second additional contribution (CPP2) adds 8% on earnings from $74,600 to $85,000, a maximum of $832. For 2025 the maximums were $8,068.20 and $792. The calculation is done on Schedule 8 of the T1 for everyone outside Quebec, where the Quebec Pension Plan applies.

Which expenses can you deduct?

Deduct expenses that are reasonable and incurred to earn income. Frequent ones include supplies, advertising, software, professional fees, insurance, office rent, interest and bank charges, and a capital cost allowance (CCA) claim on equipment. Special rules:

• Meals and entertainment: only 50% of the lesser of the amount incurred and a reasonable amount.
• Business use of home: allowed if the space is your principal place of business, or you use it only for business and meet clients there regularly and on an ongoing basis. Use a reasonable basis such as floor area. The claim cannot create or increase a loss; unused amounts carry forward.
• Vehicles: keep a log of business kilometres, because only the business share of fuel, insurance and CCA is deductible.
• GST/HST: registrants claim input tax credits and deduct the net cost; see our GST/HST guide.

Keep records for six years from the end of the last tax year they relate to.

Steps for a new sole proprietor

1. Choose and register a business name with your province if you trade under one (Ontario charges $60 for a sole proprietorship name).
2. Open a separate bank account and track every receipt.
3. Register for GST/HST if taxable revenue passes $30,000, or earlier if you want input credits.
4. Estimate your tax and CPP and pay instalments if required.
5. File the T1 and T2125 by June 15 and pay by April 30.
6. Revisit incorporating once profit exceeds your personal spending; see incorporating in Canada.

Worked example: a Calgary consultant in 2026

Rohan is a Calgary IT consultant with $85,000 of net business income in 2026. His CPP is $71,100 x 11.9% = $8,460.90, and CPP2 is $10,400 x 8% = $832, so $9,292.90 in total. He rents a 12 square metre room in a 120 square metre apartment and pays $18,000 a year in rent, heat and insurance. Because the room is his principal place of business, the business share is 10%, or $1,800, deductible within his net income. If he spends $2,000 on client meals, only $1,000 is claimable.

Mistakes to avoid

• Assuming June 15 also extends the payment date.
• Claiming the full cost of client meals.
• Using the home office claim to create a loss.
• Forgetting instalments after a strong first year, which leads to instalment interest.
• Mixing personal and business spending in one account.
• Paying yourself a "salary" and deducting it.

A note for U.S.- and India-linked owners

A U.S. citizen or green card holder who is self-employed in Canada generally files a U.S. return as well, usually reporting the business on a U.S. schedule and, depending on the facts, owing U.S. self-employment tax. The U.S.-Canada social security agreement may prevent paying into both systems if you obtain a certificate; see the totalization guide, U.S. citizens living in Canada and our U.S. business entity types page. Canada also has a social security agreement with India. For Indian income or treaty questions, see the India-Canada tax treaty guide. For credit in India for Canadian tax on shared income, see our India foreign tax credit guide.

How we can help

We are a U.S. CPA firm in Aurora, Illinois. We prepare the U.S. return and foreign reporting for self-employed clients who live in or earn from Canada, and we coordinate with your Canadian CPA, who prepares the T1 and T2125, so the Canadian and U.S. income figures reconcile. See our individual tax returns for newcomers and NRIs and cross-border tax services.

Frequently asked questions

General information only. It is not tax, legal, accounting or immigration advice for your situation, and rules change; confirm the current rules with the official source or a licensed professional in the relevant country.